I couldn't even connect over USB and I emailed them about it, they suggested to restart the network interface. At first this didn't seem to work, but I think I just didn't wait long enough. So what now works for me is just bringing the network interface down, bringing it up again and waiting a couple of seconds:
$ sudo ip link set enx00e0993168d7 down $ sudo ip link set enx00e0993168d7 up $ ip a show dev enx00e0993168d7 13: enx00e0993168d7: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000 link/ether 00:e0:99:31:68:d7 brd ff:ff:ff:ff:ff:ff inet 10.254.239.243/24 brd 10.254.239.255 scope global dynamic noprefixroute enx00e0993168d7 valid_lft 42632sec preferred_lft 42632sec inet6 fe80::9c4a:2259:c022:588/64 scope link noprefixroute valid_lft forever preferred_lft forever
After this, I can access the web interface and ssh on 10.254.239.1 over USB. Wi-Fi doesn't seem to work and I didn't look at it because the USB network is fine for me for now.